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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 10 left in stock, order soon!
Arrives
Tuesday, Nov 17
Recently Viewed
At a glance
- Condition
- New
- Color
- Blood Red
- Number of Items
- 1
- Dimensions
- 3.15"L x 3.15"W x 9.45"H
- Weight
- 1 kg
- Material
- Metal, Plastic, Rubber
- Power Connector Type
- 3-Pin
- Warranty
- One year manufacturer
- Works with
- Desktop
Features 5
- High quality concentrated pigments for intense, vivid and saturated colors
- Thermal efficient and non-toxic formula
- Low electrical conductivity
- Compatible with Acrylic, PeTG, POM Acetal, rubber (NBR, ePDM, and Norprene) materials
- eco-friendly (90% biodegradable in 10 days)
Description
Formulated with biological inhibitors and corrosion protectants, this coolant shields copper, brass, nickel, and aluminum from rust, oxidation, and sediment buildup to extend the lifespan of your custom PC loop. Delivers exceptional thermal efficiency to keep CPU and GPU temperatures low during heavy gaming workloads. The non-clogging formula maintains stable fluid dynamics and prevents breakdown over extended operation. Available in vivid opaque and translucent finishes engineered to reflect RGB lighting beautifully. The non-fading formula stays suspended without settling or staining your tubes and water blocks over time. Ready to use right out of the bottle—no diluting or measuring required. Made with biodegradable, non-toxic chemical components, making it safe for your PC components, your home, and the environment.
Specs 18
| Product Dimensions | 3.15"L x 3.15"W x 9.45"H |
|---|---|
| Brand | EK |
| Power Connector Type | 3-Pin |
| Cooling Method | liquid |
| Material | Metal, Plastic, Rubber |
| EU Spare Part Availability Duration | 5 years |
| Item Highlight | Non-toxic, low-viscosity premix PC coolant, 1000mL, Blood Red; prevents sediment and clogging. |
| Global Trade Identification Number | 63 |
| Number of Packs | 1 |
| Item Dimensions L x W x H | 3.15"L x 3.15"W x 9.45"H |
| Material Type | Metal, Plastic, Rubber |
| Brand Name | EK |
| Manufacturer | EKWB |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Item Weight | 1 kg |
| Model | 3 |
| Part Number | 3 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
(UPDATED) - The only opaque coolant that holds up over time.
Color: Mystic Fog
Number of Items: 1
I have been building custom waterloops for well over 10 years and used dozens of different coolants. When running opaque coolants, even semi-opaque like this EK Mystic Fog, they alway, and do mean 100% of the time, break down over time and you always end up with a chalky mess of sediments in your loop to scrub out. It's the accepted trade off you need to be aware of when running a solid color type coolant. That is until I stumble across EK Mystic Fog. It's probably considered semi-opaque because it's ever so slightly transparent and a very effective substitute. Looks absolutely fantastic with a milky white glow and very UV reactive. And by far the best part.. IT DOESN'T BREAK DOWN! To my complete amazement when going to do an upgrade after about 4 months with this coolant, I drained it and could not believe my eyes. Absolutely no sediments anywhere in the loop. This is the ones guys! If you are going to that white coolant look get this stuff. Period. UPDATED REVIEW: Almost 1 year later and on my second bottle of premix. As I stated above in my original review, I did a drain and inspection at 4 months. Everything looks great without any breakdown of the coolant so I did a basic distilled water flush and refilled the loop with a fresh premix bottle of Mystic Fog. Now 8 months later it looks as good as the day I put it in. No noticeable breakdown, sentiment or loss of opacity. Mystic Fog is the real deal. It keeps all my temps in check just as good and any other quality coolant and looks great. If you want that white looks this is honestly the best option. It's plenty white-enough and saves you hours of otherwise teardown and cleaning by hand. Worth every penny! I added some pics I took today at the 8 month mark. UPDATED Jan. 2026: I am now on my 3rd build using Mystic Fog. My initial review is as stands. This stuff is simply the best zero mantanace opaque coolant out there. I do wish they offered different colors with the same formula but maybe adding color is what caused issues. Never the less, white is my go-to. I recommend just buying this premix vs the constraint. Then you know its perfectly measured and mixed. Shake the bottle and pour it in and enjoy. That simple.
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Reviewed in the United States on August 17, 2023 by MB
Doesn’t leave as much residue as other cloudy fluids
Color: Mystic Fog
Number of Items: 1
Great stuff doesn’t seem to gunk nearly as much as other cloudy fluids. I’ve been very happy with the lighting absorption and it seems to hold itself together even after long periods of sitting for instance, my computer is completely hardline open loop water cooled and I didn’t use it for almost 6 months during an illness and was able to start it right back up without any gunky sections or clumpy stuff ran just fine and the fluid looks brand new although I know it’s not
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Reviewed in the United States on July 29, 2026 by Amazon Customer
Works great
Color: Blood Red
Number of Items: 1
Added to brand new loop with all EK parts. The radiators were precleaned with distilled white vinegar and distilled water. Everything else was rinsed with distilled water prior to installation. I have been running the coolant for a month and I have had no problems in my loop. I made sure to look in the bottom of the bottles before I put it in my system and I saw no evidence of sediment in the bottles I received from Amazon. It is a nice transparent red color. It is not UV reactive but when I change LED fan colors the color of the coolant changes so it provides for some cool effects while not looking over the top. Nice to have a hassle free solution which contains all of the additives your loop needs to resist corrosion and buildup. You can definitely count on EK quality which is why I went with this over some of the other junk out there. I had considered the particle fluids like Vue and mayhem aurora but they basically seem to be a giant hassle and only a temporary show solution not for long-term use. Update : I have been running his fluid in my system for six months I probably run the computer an average of two hours a day. I’ve had zero issues. No buildup or other residue in the loop. Everything is working great. I’m gonna let it go another six months before I clean it. Update 2/26/21 still on the original fluid haven’t had to clean the loop. Loop looks pristine with over 1 yr run time on the original fluid. Very pleased. Update 9/6/21 , Still on the original fluid Without a single cleaning since originally putting the fluid in. The loop looks perfectly clean. The copper water blocks look good, no discoloration or other problems . So far it seems that the fluid has maintained its original red color without significant degradation..
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Reviewed in the United States on February 22, 2020 by j daniel mullen
Best coolant on the market
Color: Acid Green
Number of Items: 1
I love this stuff. This is the third flush I’ve done and every time I keep coming back to it. Color stays vibrant for a very long time.
Reviewed in the United States on April 22, 2026 by Thomas
Clean, stable, and loop-friendly—CryoFuel delivers.
Color: Acid Green
Number of Items: 1
I’ve used EK-CryoFuel in multiple builds, and it’s consistently reliable. The premix is crystal clear, non-toxic, and plays well with copper, brass, PETG, and acrylic—no weird reactions, no sediment buildup. It flows smoothly with low viscosity, which means less strain on the pump and better thermal transfer across the loop. Color stability is solid (especially in the clear version), and I haven’t seen any clouding or algae after months of use. Bonus: it’s 90% biodegradable in 10 days, so it’s eco-friendly without compromising performance. If you want a coolant that won’t clog your blocks, stain your tubing, or turn your reservoir into a science experiment, CryoFuel’s a safe bet.
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Reviewed in the United States on August 29, 2025 by TiTanRage
Clear might be better, but overall pleased
Good stuff. Kept my temps pretty cool too, but I would caution against colors if at all possible. When doing a clean out and flush of the loop a few months after I found a lot of small color particles throughout my loop and all over the inside of the blocks staining the metal and making it look like corrosion when it wasn't. Thankfully, I had an in-line filter so it caught everything and I was able to clean the filter out and get rid of any gunk left behind. That being said, the color was spot on and gave the exact look I was going for. If my next flush is anything like the first then it may be the coolant otherwise it could have been color sticking to particles that were still left in the loop from my initial setup and flush; I'll update my review on the next flush.
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Reviewed in the United States on July 27, 2025 by ARR
Best coolant ever. Going to buy more of it.
Color: Acid Green
Number of Items: 1
This has to be the best quality coolant ever, it functions perfectly and cooled my gpu and cpu to 40c under load. This is one of my favorite coolant ever and best value for you and your pc. No gunk no stains, that’s why I like about this product. I would recommend everyone to use this coolant for the best visual quality and best durability possible.
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Reviewed in the United States on May 7, 2025 by Alejandro B.
The only coolant I run now.
The color is beautiful and it works like a champ. It's the only coolant I have in my rig. My daughter's rig was running Corsair red coolant. It lost it's color very quickly and didn't seem to cool as good after some time. BTW-I love Corsair(that's the only components i have in my rig, minus this coolant), but this coolant does way better. This is my third bottle, and I only recently changed my coolant out because that's all you see on the internet is to do so. In my opinion, it didn't need changing. There's very few coolants out there than that can be said about. Bottom line is, it's a great coolant.
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Reviewed in the United States on March 20, 2025 by Jay